| |
| Name(Type) |
|
|
Explanation |
| American standard check Piece
– fiducial check Piece |
|
|
|
| British standard check Piece
B.S.A3 |
|
|
|
| British Institute of Welding
( IOW )check Piece |
|
|
Q/HS 7007-93 |
| Japanese standard check PieceJIS-STB-A1 |
|
|
Same as IIW1(V-I) |
| Japanese standard check Piece
JIS-STB-A2 |
|
|
|
| Japanese standard check Piece JIS-STB-A3 |
|
|
|
| Japanese standard check Piece JIS-STB-G |
|
|
|
| Japanese standard check Piece STB-A21 |
|
|
|
| Japanese standard check Piece STB-A22 |
|
|
|
| Japanese standard check Piece RB-A4AL |
|
|
|
| Japanese standard check Piece RB-D |
|
|
Same as DB-D1 ） |
| Japanese standard check Piece RB-4 |
|
|
|
